most of them aren't really at fault. they are just poor newcomers who entered a big market and were suddenly bombarded by a huge wave of advertisement which were promising them riches beyond their wildest dreams so they ended up buying a ton of useless tokens which have been continuously losing value
But thanks to those advertisements and other promotions they are able to know slightly what Bitcoin is, how the market works, and gain experiences in crypto currencies for them to fit in the long run throughout the years. Really if it weren't for those things that urge them to by other alts, the last bull couldn't make it to BTC's last ATH, at the last moment they managed to sell their tokens or either exchange it for Bitcoin resulting in them studying in order for them to have a sturdy comeback.